Above, fossilized shark teeth make up a tiny portion of a 5-by-8-foot (1.5-by-2.5-meter) photograph depicting 270,000 of the teeth--one for each shark killed for its fins around the world each day, according to artist Chris Jordan.

"Sociologists tell us that the human mind cannot meaningfully grasp numbers higher than a few thousand; yet every day we read of mass phenomena characterized by numbers in the millions, billions, even trillions," Jordan says in a statement on his web site. By depicting statistics in floor-to-ceiling photomosaics, he hopes to intuitively convey these huge quantities.